Operation Manual / TPL73-B.. - 85-B11/ -B12
4 Operation / 4.3 Servicing work
© Copyright 2018 . All rights reserved. HZTL2480_EN Revision D July 2018
4.3.4 Service work every 18,000 hours
It is recommended to have this service work and inspections carried out
by an ABB Turbocharging Service Station.
u Remove the filter silencer
u Clean the filter silencer and inspect for damage
u Remove the compressor casing internal part
u Check axial clearance A
u Clean the compressor wheel, diffuser, wall insert as well as the com-
pressor casing and inspect for damage
u Without removing them, visually inspect the turbine parts (nozzle
ring, turbine diffuser / cover ring and turbine blades) using a bore-
scope for any contamination or damage
Optionally, this inspection can be carried out after removing the gas
inlet casing
u Refit the compressor casing internal part
u Refit the filter silencer
4.3.5 Service work every 36000 hours
Service work on the rotor and bearing parts must be carried out by an
ABB Turbocharging Service Station. Damaged and worn out parts must
be replaced with original ABB parts.
u Remove the filter silencer.
u Clean the filter silencer and inspect for damage.
u Dismantle the wall insert.
u Check axial clearance A.
u Clean wall insert, diffuser and compressor casing and inspect for
damage.
u Remove the gas inlet casing as well as the nozzle ring and cover ring.
u Clean the nozzle ring and cover ring and inspect for damage.
u Dismantle, inspect and balance the rotor.
u Replace the plain bearings.
Page 39 / 151
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